ostream.h | Explore in Territory

// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#ifndef _LIBCPP___CHRONO_OSTREAM_H
#define _LIBCPP___CHRONO_OSTREAM_H

#include <__chrono/calendar.h>
#include <__chrono/day.h>
#include <__chrono/duration.h>
#include <__chrono/file_clock.h>
#include <__chrono/hh_mm_ss.h>
#include <__chrono/local_info.h>
#include <__chrono/month.h>
#include <__chrono/month_weekday.h>
#include <__chrono/monthday.h>
#include <__chrono/statically_widen.h>
#include <__chrono/sys_info.h>
#include <__chrono/system_clock.h>
#include <__chrono/weekday.h>
#include <__chrono/year.h>
#include <__chrono/year_month.h>
#include <__chrono/year_month_day.h>
#include <__chrono/year_month_weekday.h>
#include <__chrono/zoned_time.h>
#include <__concepts/same_as.h>
#include <__config>
#include <__format/format_functions.h>
#include <__fwd/ostream.h>
#include <ratio>

#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#  pragma GCC system_header
#endif

_LIBCPP_BEGIN_NAMESPACE_STD

#if _LIBCPP_STD_VER >= 20

namespace chrono {

template <class _CharT, class _Traits, class _Duration>
  requires(!treat_as_floating_point_v<typename _Duration::rep> && _Duration{ … }

template <class _CharT, class _Traits>
_LIBCPP_HIDE_FROM_ABI basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os, const sys_days& __dp) { … }

template <class _CharT, class _Traits, class _Duration>
_LIBCPP_HIDE_FROM_ABI basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os, const file_time<_Duration> __tp) { … }

template <class _CharT, class _Traits, class _Duration>
_LIBCPP_HIDE_FROM_ABI basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os, const local_time<_Duration> __tp) { … }

// Depending on the type the return is a const _CharT* or a basic_string<_CharT>
template <class _CharT, class _Period>
_LIBCPP_HIDE_FROM_ABI auto __units_suffix() { … }

template <class _CharT, class _Traits, class _Rep, class _Period>
_LIBCPP_HIDE_FROM_ABI basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os, const duration<_Rep, _Period>& __d) { … }

template <class _CharT, class _Traits>
_LIBCPP_HIDE_FROM_ABI basic_ostream<_CharT, _Traits>& operator<<(basic_ostream<_CharT, _Traits>& __os, const day& __d) { … }

template <class _CharT, class _Traits>
_LIBCPP_HIDE_FROM_ABI basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os, const month& __m) { … }

template <class _CharT, class _Traits>
_LIBCPP_HIDE_FROM_ABI basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os, const year& __y) { … }

template <class _CharT, class _Traits>
_LIBCPP_HIDE_FROM_ABI basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os, const weekday& __wd) { … }

template <class _CharT, class _Traits>
_LIBCPP_HIDE_FROM_ABI basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os, const weekday_indexed& __wdi) { … }

template <class _CharT, class _Traits>
_LIBCPP_HIDE_FROM_ABI basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os, const weekday_last& __wdl) { … }

template <class _CharT, class _Traits>
_LIBCPP_HIDE_FROM_ABI basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os, const month_day& __md) { … }

template <class _CharT, class _Traits>
_LIBCPP_HIDE_FROM_ABI basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os, const month_day_last& __mdl) { … }

template <class _CharT, class _Traits>
_LIBCPP_HIDE_FROM_ABI basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os, const month_weekday& __mwd) { … }

template <class _CharT, class _Traits>
_LIBCPP_HIDE_FROM_ABI basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os, const month_weekday_last& __mwdl) { … }

template <class _CharT, class _Traits>
_LIBCPP_HIDE_FROM_ABI basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os, const year_month& __ym) { … }

template <class _CharT, class _Traits>
_LIBCPP_HIDE_FROM_ABI basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os, const year_month_day& __ymd) { … }

template <class _CharT, class _Traits>
_LIBCPP_HIDE_FROM_ABI basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os, const year_month_day_last& __ymdl) { … }

template <class _CharT, class _Traits>
_LIBCPP_HIDE_FROM_ABI basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os, const year_month_weekday& __ymwd) { … }

template <class _CharT, class _Traits>
_LIBCPP_HIDE_FROM_ABI basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os, const year_month_weekday_last& __ymwdl) { … }

template <class _CharT, class _Traits, class _Duration>
_LIBCPP_HIDE_FROM_ABI basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os, const hh_mm_ss<_Duration> __hms) { … }

#  if !defined(_LIBCPP_HAS_NO_EXPERIMENTAL_TZDB)

template <class _CharT, class _Traits>
_LIBCPP_HIDE_FROM_ABI basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os, const sys_info& __info) {
  // __info.abbrev is always std::basic_string<char>.
  // Since these strings typically are short the conversion should be cheap.
  std::basic_string<_CharT> __abbrev{__info.abbrev.begin(), __info.abbrev.end()};
  return __os << std::format(
             _LIBCPP_STATICALLY_WIDEN(_CharT, "[{:%F %T}, {:%F %T}) {:%T} {:%Q%q} \"{}\""),
             __info.begin,
             __info.end,
             hh_mm_ss{__info.offset},
             __info.save,
             __abbrev);
}

template <class _CharT, class _Traits>
_LIBCPP_HIDE_FROM_ABI basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os, const local_info& __info) {
  auto __result = [&]() -> basic_string<_CharT> {
    switch (__info.result) {
    case local_info::unique:
      return _LIBCPP_STATICALLY_WIDEN(_CharT, "unique");
    case local_info::nonexistent:
      return _LIBCPP_STATICALLY_WIDEN(_CharT, "non-existent");
    case local_info::ambiguous:
      return _LIBCPP_STATICALLY_WIDEN(_CharT, "ambiguous");

    default:
      return std::format(_LIBCPP_STATICALLY_WIDEN(_CharT, "unspecified result ({})"), __info.result);
    };
  };

  return __os << std::format(
             _LIBCPP_STATICALLY_WIDEN(_CharT, "{}: {{{}, {}}}"), __result(), __info.first, __info.second);
}

#    if !defined(_LIBCPP_HAS_NO_TIME_ZONE_DATABASE) && !defined(_LIBCPP_HAS_NO_FILESYSTEM) &&                          \
        !defined(_LIBCPP_HAS_NO_LOCALIZATION)
template <class _CharT, class _Traits, class _Duration, class _TimeZonePtr>
_LIBCPP_HIDE_FROM_ABI basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os, const zoned_time<_Duration, _TimeZonePtr>& __tp) {
  return __os << std::format(__os.getloc(), _LIBCPP_STATICALLY_WIDEN(_CharT, "{:L%F %T %Z}"), __tp);
}
#    endif
#  endif // !defined(_LIBCPP_HAS_NO_EXPERIMENTAL_TZDB)

} // namespace chrono

#endif // if _LIBCPP_STD_VER >= 20

_LIBCPP_END_NAMESPACE_STD

#endif // _LIBCPP___CHRONO_OSTREAM_H
chromium/third_party/libc++/src/include/__chrono/ostream.h
